Final answer:
Obscene speech is not as extensively protected as commercial speech under the First Amendment.
Step-by-step explanation:
The protection given to obscene speech under the First Amendment is not as extensive as the protection given to commercial speech. While commercial speech is still afforded a great deal of protection, the Court has generally ruled that claims made in advertising should be accurate and not misleading to serve the public interest. On the other hand, obscene speech is not protected by the First Amendment and falls under the category of content restrictions, along with defamation.